Disabling Basic Features
Reset Safari. Open your Safari browser, and go to the “Safari" tab on the top of the screen. Next, click on “Reset Safari". The following screen will then show you a list of files to remove. Check all of the boxes to remove all files. Next, restart your Safari browser, and you will notice an increase in overall performance.
Step 2 (For Mac users)
Block the favicons. To do this, go to “Finder", and go to your username. Next, access the “Library" folder and then click on the “Safari" folder. Look for the file called “Webpageicons.db". Select it, and then click on it. The following screen will show you the default settings. To block the favicons, click on the box that says “Locked".
Open Safari again and go to “Preferences". Next, go to the “Autofill" section, and uncheck all of the boxes.
Use private browsing. During private browsing mode, nothing will be saved. This will decrease the amount resources being used, and therefore will cause an increase in performance. To do this, open Safari, and go to the “Edit" tab. Next, select “Private Browsing".
Disable unnecessary files. Like all browsers, Safari comes with plug-ins that enables you to browse through the web easier. However, many of these features slow down the performance of Safari. To solve this, open Safari, and go to the “Develop" section. Next, disable Java script, caches, styles, and images. You can always go back and enable these items again.